The taps were flowing and the oom-pah bands were oom-pahing again in Germany. It’s Oktoberfest time, and the world’s largest festival celebrating beer reportedly attracted some 6 million visitors this time around before the taps ran dry earlier this week. The origin of the event dates back to 1810 when Crown Prince Ludwig was married to Princess Therese and the people of Munich were invited to attend the festivities. Only beer brewed within the city limits of Munich can be served at the festival. Revelers attend the last and sunny day of Oktoberfest beer festival on Oct. 2 in Munich, Germany. A Bavarian rifleman in traditional costume stands in front of the 'Bavaria' statue in Munich. Participants of the traditional costume and riflemen's procession during day 2 of the 2011 Oktoberfest.